Weighable tobacco stem and shank separating device with anti-blocking function

Abstract

The application discloses a tobacco stem and shred separating device with anti-blocking function, which comprises a mounting box seat and a discharging device, a separating device, a weighing device and a stem plug recycling device mounted on the mounting box seat. When tobacco stems and shreds fall, a first driving push rod drives a first connecting rod to control a turning plate. When the tobacco stems and shreds fall into a weighing spoon, a weighing sensor measures the mass of the tobacco stems and shreds. When the tobacco stems and shreds enter a separating cavity, negative pressure suction is utilized to separate the tobacco stems and shreds, so that the tobacco stems fall into a stem plug discharging hopper. In order to prevent the discharging opening of the separating cavity from being blocked, a dredging assembly can clean the discharging opening at regular time intervals. The application is a stem and shred flow real-time monitoring, on-line measuring and stem containing shred recycling and reusing device with multiple functions, which can effectively realize the regular measurement of discharging quality in the separation of tobacco stems and shreds, effectively solve the problem of the blocking of the discharging opening of the separating cavity, and better realize the automatic integrated production operation mode of production, monitoring, feedback and early warning.

Description

Technical Field

[0001] This invention relates to the field of cigarette processing, and specifically to a weighable tobacco shred and stem separation device with anti-clogging function. Background Technology

[0002] The cigarette industry has long been committed to improving stem separation systems to increase the stem content of cigarettes after rolling. Therefore, the amount of stems dropped by the feeding and forming machine is a key factor determining cigarette quality. However, research on the precise control of stem dropping is limited, with very few reports on such methods. Currently, the measurement of stem removal effectiveness relies heavily on manual labor, with some companies using instruments to assist, but manual intervention is still necessary. Correspondingly, online real-time automatic measurement devices are scarce.

[0003] In actual production, based on the quality characteristics of tobacco shreds and stems, negative pressure air separation is often used for stem-shred separation. However, existing tobacco shred and stem separation devices cannot inspect and measure the quality of the material being fed online. Excessive stem removal intensity results in a high content of stems with shreds, leading to increased tobacco loss and waste. Insufficient stem removal may result in excessive stem content in the rolled cigarettes, causing poor cigarette weight stability, large fluctuations in the SD weight of a single cigarette, and defects in cigarette surface punctures. Moreover, due to the intertwining and irregular shape of the tobacco shreds, material blockage frequently occurs at the material feeding port of the stem-shred separation chamber during actual production, severely affecting production efficiency. Summary of the Invention

[0004] To overcome the above shortcomings, this invention provides a weighable tobacco shred and stem separation device with anti-clogging function. This invention can effectively achieve timed online measurement of the quality of tobacco shreds and stems during separation, and effectively solves the problem of clogging at the discharge port of the separation chamber.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows:

[0006] A weighable tobacco stem and shred separation device with anti-clogging function includes a mounting base and a feeding device, a separation device, a weighing device, and a stem and shred recycling device mounted thereon.

[0007] The feeding device includes a feeding chamber, and the feeding port at the bottom of the feeding chamber is connected to the separation device. A flap assembly is provided on the opposite side of the connection side. The flap assembly includes a flap with a separation working position and a weighing working position. When it is in different working positions, it guides the tobacco shreds and stems to the separation device or the weighing device respectively.

[0008] The separation device includes a separation chamber, an air inlet at its top and a vacuum suction component, and the bottom of the separation chamber is open, with a dredging component installed below it.

[0009] The weighing device includes a weighing scoop, a weighing bracket, and a flipping assembly. A weighing sensor is installed at the bottom of the weighing scoop. A connecting rod bracket and a signal amplifier are provided on the weighing bracket. The flipping assembly includes a cylinder and a second drive push rod. The front end of the second drive push rod is connected to the connecting rod bracket. The connecting rod bracket is connected to the signal amplifier through a second connecting rod. The signal amplifier is fixed on the weighing bracket. The connecting rod bracket is connected to the signal amplifier through an adapter pin.

[0010] The tobacco stem recycling device includes a tobacco stem hopper, which is installed on the base plate of the mounting box, and its bottom is connected to a tobacco stem recycling pipe.

[0011] As an improvement to the above technical solution, the flip plate assembly includes a flip plate fixing frame installed at the bottom of the feeding chamber, a cylinder and a first drive push rod installed on the flip plate fixing frame, and a drive shaft passing through the side wall of the feeding chamber. One end of the drive shaft passes through the flip plate fixing frame and is movably connected to the first drive push rod through a first connecting rod, and the other end is provided with an end cap.

[0012] The drive shaft is fixedly connected to the first connecting rod.

[0013] Optionally, the first connecting rod and the first drive push rod are movably connected via a connecting rod joint.

[0014] Optionally, a bearing is provided between the drive shaft and the side wall of the feeding chamber.

[0015] As an improvement to the above technical solution, the first drive push rod is mounted on the flip plate fixing frame through a limiting block and a positioning block.

[0016] When the flap is in the separation working position, the first drive push rod is extended to its maximum stroke, the angle between the flap and the feeding chamber is at its minimum, the flap is in a vertical state, and the tobacco shreds and stems fall into the separation device through the feeding port; when the flap is in the weighing working position, the first drive push rod retracts back to its initial position, the angle between the flap and the feeding chamber is at its maximum, the flap is tilted in the feeding chamber, the feeding port is closed, and the tobacco shreds and stems are guided to fall into the weighing device.

[0017] As an improvement to the above technical solution, an air intake with a suitable shape is provided above the separation chamber to connect with the discharge port.

[0018] As an improvement to the above technical solution, the separation chamber is mounted on the mounting base via an L-plate.

[0019] Optionally, the L-plate has four L-shaped arc grooves on its surface, with mounting bolts slidably disposed therein, to facilitate the installation and disassembly of the separation device.

[0020] As an improvement to the above technical solution, the unblocking component includes a conical umbrella cap and a cylinder, a third drive push rod, and a third push rod bracket connected to its lower end. The conical umbrella cap is located at the bottom center of the separation chamber. The conical umbrella cap is connected to the third drive push rod, and the third drive push rod is connected to the third push rod bracket. The third push rod bracket and the cylinder are installed below the bottom plate of the mounting box. When the third drive push rod is extended to its maximum stroke, the conical umbrella cap penetrates deep into the separation chamber. When the third drive push rod retracts back to its initial position, the conical umbrella cap moves downward to the outside of the bottom of the separation chamber.

[0021] As an improvement to the above technical solution, the flipping assembly is fixed to the mounting base by a push rod pad and a buckle.

[0022] Optionally, a pad and a gasket are provided between the weighing scoop and the weighing bracket.

[0023] Optionally, the front end of the second drive push rod is connected to the connecting rod bracket via a spherical bearing.

[0024] Initially, the second drive push rod is in the retracted state, in which the weighing scoop is in a horizontal state. When the second drive push rod extends to its maximum stroke, the second drive push rod drives the connecting rod bracket, causing the connecting rod bracket to drive the weighing scoop to flip. In this state, the angle between the weighing scoop and the horizontal reaches its maximum value, so as to empty the weighing scoop.

[0025] As an improvement to the above technical solution, the feed hopper is located below the separation device and the weighing device, and its inner wall is provided with a circular hole to allow the third drive push rod to pass through.

[0026] As an improvement to the above technical solution, the base plate of the mounting box is provided with a square hole for installing a third push rod bracket, and the bottom of the base plate is connected with feet and casters.

[0027] The beneficial effects of this invention are as follows:

[0028] This invention is a multi-functional device for real-time monitoring, online measurement, and recycling of filaments in stems, which can better realize an automated integrated production operation mode of production, monitoring, feedback, and early warning.

[0029] This device can switch working states as needed to separate and extract tobacco from the stem sticks or to measure the flow rate of the stem sticks in real time using gravity sensing. By perfectly combining various functions, it achieves the expected multi-functional integrated application effect, meets the requirements of the production process, provides standardized and scientific data support for cigarette production, reduces tobacco waste in the production process, ensures the stability of the single cigarette weight deviation SD index, and reduces quality problems such as cigarette puncture.

[0030] 1. By controlling the first drive push rod, the rotation angle of the flap can be controlled, so that when the tobacco shreds and stems are fed, they can be selected to enter the weighing device or directly enter the separation device. When the tobacco shreds and stems enter the weighing device, they can be weighed by the weighing sensor and the weighing scoop can be flipped by the second drive push rod to empty the weighing scoop, thus adding a weighing function to the existing separation device.

[0031] 2. By setting up a dredging component with anti-blocking function and controlling the extension and retraction frequency of the third drive push rod, the accumulated tobacco in the separation chamber is pulled into the discharge hopper at regular intervals, which solves the problem of frequent blockage at the discharge port at the bottom of the separation chamber and improves production efficiency.

[0032] The device of this invention is highly practical in operation, ensuring the stability of the stem removal rate, reducing production costs, and improving the effective utilization rate of tobacco shreds, resulting in good application effects. In practical applications, it can effectively reduce the labor intensity of operators who frequently measure the amount of fallen stems, enhance the quality control capabilities of operators and on-site process quality personnel, and have a certain influence on improving the pass rate of the intrinsic product quality after cigarette rolling. Attached Figure Description

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0034] Figure 1 This is a schematic diagram of the structure of the device of the present invention;

[0035] Figure 2 This is a schematic diagram of the flap assembly structure of the feeding device;

[0036] Figure 3 This is a schematic diagram of the connection structure of the feeding device and the separating device;

[0037] Figure 4 This is a schematic diagram of the separation device.

[0038] Figure 5 This is a schematic diagram of the weighing device.

[0039] Figure 6 This is a schematic diagram of the unblocking component structure of the separation device;

[0040] Figure 7 This is a schematic diagram of the structure of the stem tag recycling device.

[0041] Numbering on the map:

[0042] 1-Feeding chamber, 2-Mounting box base, 3-Flip plate assembly, 4-Weighing device, 5-Stem drop hopper, 6-Stem recycling pipe, 7-Bottom plate, 8-Unblocking assembly, 9-Separation device, 10-Vacuum suction pipe;

[0043] 301-End cap, 302-First connecting rod, 303-Flip plate, 304-Flip plate fixing frame, 305-Positioning block, 306-Limiting block, 307-First drive push rod, 308-Connecting rod joint;

[0044] 401-Signal amplifier, 402-Second link, 403-Link bracket, 404-Second drive push rod, 405-Snap fastener, 406-Padded block, 407-Weighing bracket, 408-Padded plate, 409-Push rod pad, 410-Weighing spoon;

[0045] 701-Foot, 702-Caser, 801-Conical umbrella cap, 802-Third drive push rod, 803-Third push rod bracket;

[0046] 901-L-shaped arc groove, 902-L plate, 903-separation chamber, 904-air inlet nozzle. Detailed Implementation

[0047] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0048] Figure 1 The overall structure of this weighable tobacco stem and shred separation device with anti-clogging function is shown.

[0049] This device includes a mounting base 2 and a feeding device, a separating device 9, a weighing device 4, and a stem recycling device mounted on it.

[0050] The feeding device includes a feeding chamber 1, the bottom feeding port of the feeding chamber 1 is connected to the separation device 9, and a flap assembly 3 is provided on the opposite side of the connection side. The flap assembly 3 includes a flap 303 with a separation working position and a weighing working position. When it is in different working positions, it guides the tobacco shreds and stems to the separation device 9 or the weighing device 4 respectively.

[0051] Figure 2 The structure of the flap assembly 3 of the feeding device is shown.

[0052] The flip plate assembly 3 includes a flip plate fixing frame 304 installed at the bottom of the discharge chamber 1, a cylinder and a first drive push rod 307 installed on the flip plate fixing frame 304, and a drive shaft passing through the side wall of the discharge chamber 1. One end of the drive shaft passes through the flip plate fixing frame 304 and is movably connected to the first drive push rod 307 through the first connecting rod 302, and the other end is provided with an end cap 301.

[0053] In this embodiment, the drive shaft is fixedly connected to the first connecting rod 302, and a bearing is provided between the drive shaft and the side wall of the feeding chamber 1. The bearing is a deep groove ball bearing.

[0054] Preferably, the first connecting rod 302 and the first drive push rod 307 are movably connected through a connecting rod joint 308.

[0055] Preferably, the first drive push rod 307 is mounted on the flip plate fixing frame 304 via a limiting block 306 and a positioning block 305.

[0056] When the flap 303 is in the separation working position, the first drive push rod 307 extends to its maximum stroke, the angle between the flap 303 and the feeding chamber 1 is at its minimum, the flap 303 is in a vertical state, and the tobacco shreds and stems fall into the separation device 9 through the feeding port; when the flap 303 is in the weighing working position, the first drive push rod 307 retracts back to its initial position, the angle between the flap 303 and the feeding chamber 1 is at its maximum, the flap 303 is tilted in the feeding chamber 1, the feeding port is closed, and the tobacco shreds and stems are guided to fall into the weighing device 4.

[0057] Figure 3 The connection structure between the feeding device and the separating device 9 is shown. Figure 4 The structure of the separation device 9 is shown.

[0058] The separation device 9 includes a separation chamber 903, an air inlet 904 disposed at its top and a vacuum suction pipe 10. The bottom of the separation chamber 903 is open, and a dredging component 8 is installed below it.

[0059] The separation chamber 903 has an air intake with a suitable shape that connects to the discharge port.

[0060] Preferably, the separation chamber 903 is mounted on the side plate of the mounting base 2 via an L-plate 902.

[0061] Preferably, the L-plate 902 has four L-shaped arc grooves 901 on its surface, in which mounting bolts are slidably disposed to facilitate the installation and disassembly of the separation device 9.

[0062] Figure 5 The structure of the weighing device 4 is shown.

[0063] The weighing device 4 includes a weighing scoop 410, a weighing bracket 407, and a flipping assembly. A weighing sensor is installed at the bottom of the weighing scoop 410. A connecting rod bracket 403 and a signal amplifier 401 are provided on the weighing bracket 407. The flipping assembly includes a cylinder and a second drive push rod 404. The front end of the second drive push rod 404 is connected to the connecting rod bracket 403. The connecting rod bracket 403 is connected to the signal amplifier 401 through a second connecting rod 402. The signal amplifier 401 is fixed on the weighing bracket 407.

[0064] The connecting rod bracket 403 is connected to the signal amplifier 401 via an adapter pin. It has two ends located on both sides of the adapter pin as the rotation center. Its lower end is movably connected to the second drive push rod 404 via a fisheye joint bearing, and its upper horizontal end is fixed to the weighing spoon 410.

[0065] The flipping assembly is fixed to the mounting base 2 by push rod pad 409 and buckle 405.

[0066] Preferably, a pad 406 and a shim 408 are provided between the weighing spoon 410 and the weighing support 407 to limit the maximum tilt angle of the former.

[0067] The signal amplifier 401 is connected to the sensor for communication, and the AUTODA TDA-02C weight transmitter signal amplifier is selected.

[0068] Preferably, the weighing spoon 410 has an asymmetrical structure that is wider at the top and narrower at the bottom, with its left and right sides tilted asymmetrically to facilitate the pouring of the weighed tobacco stems and shreds from the weighing spoon 410.

[0069] Initially, the second drive push rod 404 is in a retracted state, in which the connecting rod bracket 403 is not activated, so that the weighing scoop 410 is in a horizontal state and is located at the weighing station. When the second drive push rod 404 extends to its maximum stroke, the second drive push rod 404 drives the connecting rod bracket 403, which rotates counterclockwise around its pivot pin, and further drives the weighing scoop 410, which is fixedly connected to its horizontal end, to tilt and flip forward. In this state, the angle between the weighing scoop 410 and the horizontal reaches its maximum value, and it is located at the tilting station to empty the weighing scoop.

[0070] Figure 6 The structure of the unblocking component 8 of the separation device 9 is shown.

[0071] The unblocking assembly 8 includes a conical umbrella cap 801 and a cylinder, a third drive push rod 802, and a third push rod bracket 803 connected to its lower end. The conical umbrella cap 801 is located at the bottom center of the separation chamber 903. The conical umbrella cap 801 is connected to the third drive push rod 802, and the third drive push rod 802 is connected to the third push rod bracket 803. The third push rod bracket 803 and the cylinder are installed below the base plate 7 of the mounting box 2. When the third drive push rod 802 extends to its maximum stroke, the conical umbrella cap 801 penetrates deep into the separation chamber 903. When the third drive push rod 802 retracts back to its initial position, the conical umbrella cap 801 moves downward to the outside of the bottom of the separation chamber 903. By controlling the extension and retraction frequency of the third drive push rod 802, the purpose of periodically pulling the accumulated tobacco in the separation chamber 903 into the discharge hopper can be achieved.

[0072] Figure 7 A schematic diagram of the structure of the stem tag recycling device is shown.

[0073] The stem recycling device includes a stem hopper 5, which is installed on the base plate 7 of the mounting box 2, and its bottom is connected to a stem recycling pipe 6.

[0074] Specifically, the feed hopper 5 is located below the separation device 9 and the weighing device 4, and its inner wall is provided with a round hole so that the third drive push rod 802 can pass through.

[0075] In this embodiment, the mounting base 2 includes a mounting frame side plate, a rear plate, and a bottom plate 7. The mounting frame side plate is used for the installation and fixation of the feeding chamber 1 and the separation chamber 903, and the mounting frame rear plate is used for the connection and fixation of the weighing device 4. Triangular rib support plates are provided at the corner bends of the mounting frame side plate, rear plate, and bottom plate 7 to improve the strength of the mounting frame plate.

[0076] The mounting base 2 has a square hole on its base plate 7 for mounting a third push rod bracket 803, and a foot 701 and a caster 702 are connected below it.

[0077] It should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A weighable tobacco shred and stem separation device with anti-clogging function, characterized in that: Includes a mounting base and a feeding device, a separating device, a weighing device, and a stem and skewer recycling device mounted thereon; The feeding device includes a feeding chamber, and the feeding port at the bottom of the feeding chamber is connected to the separation device. A flap assembly is provided on the opposite side of the connection side. The flap assembly includes a flap with a separation working position and a weighing working position. When it is in different working positions, it guides the tobacco shreds and stems to the separation device or the weighing device respectively. The separation device includes a separation chamber, an air inlet at its top and a vacuum suction component, and the bottom of the separation chamber is open, with a dredging component installed below it. The weighing device includes a weighing scoop, a weighing bracket, and a flipping assembly. A weighing sensor is installed at the bottom of the weighing scoop. A connecting rod bracket and a signal amplifier are provided on the weighing bracket. The flipping assembly includes a cylinder and a second drive push rod. The front end of the second drive push rod is connected to the connecting rod bracket. The connecting rod bracket is connected to the signal amplifier through a second connecting rod. The signal amplifier is fixed on the weighing bracket. The connecting rod bracket is connected to the signal amplifier through an adapter pin. The stem recycling device includes a stem hopper, which is installed on the bottom plate of the mounting box, and its bottom is connected to a stem recycling pipe. The flap assembly includes a flap fixing frame installed at the bottom of the feeding chamber, a cylinder and a first drive push rod installed on the flap fixing frame, and a drive shaft passing through the side wall of the feeding chamber. One end of the drive shaft passes through the flap fixing frame and is movably connected to the first drive push rod through a first connecting rod, and the other end is provided with an end cap. When the flap is in the separation working position, the first drive push rod is extended to its maximum stroke, the angle between the flap and the feeding chamber is at its minimum, the flap is in a vertical state, and the tobacco shreds and stems fall into the separation device through the feeding port; when the flap is in the weighing working position, the first drive push rod retracts back to its initial position, the angle between the flap and the feeding chamber is at its maximum, the flap is tilted in the feeding chamber, the feeding port is closed, and the tobacco shreds and stems are guided to fall into the weighing device. The unblocking assembly includes a conical umbrella cap and a cylinder, a third drive push rod, and a third push rod bracket connected to its lower end. The conical umbrella cap is located at the bottom center of the separation chamber. The conical umbrella cap is connected to the third drive push rod, and the third drive push rod is connected to the third push rod bracket. The third push rod bracket and the cylinder are installed below the bottom plate of the mounting box. When the third drive push rod is extended to its maximum stroke, the conical umbrella cap penetrates deep into the separation chamber. When the third drive push rod retracts back to its initial position, the conical umbrella cap moves downward to the outside of the bottom of the separation chamber. The feed hopper is located below the separation device and the weighing device, and its inner wall has a round hole to allow the third drive push rod to pass through.

2. The weighable tobacco shreds and stems separation device according to claim 1, characterized in that: The first connecting rod and the first drive push rod are movably connected through a connecting rod joint.

3. The weighable tobacco shreds and stems separation device according to claim 1, characterized in that: The first drive push rod is mounted on the flip plate fixing frame via a limit block and a positioning block.

4. The weighable tobacco shreds and stems separation device according to claim 1, characterized in that: The front end of the second drive push rod is connected to the connecting rod bracket via a spherical bearing.

5. The weighable tobacco shreds and stems separation device according to claim 1, characterized in that: The flipping assembly is fixed to the mounting base by push rod pads and buckles.

6. The weighable tobacco shreds and stems separation device according to claim 1, characterized in that: The mounting base has a square hole on its bottom plate for mounting a third push rod bracket, and feet and casters are connected to the bottom of the bottom plate.

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